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Stainless Steel Concealed Door Coordinator For Double Leaf Door Assemblies
- Product Information
Satin SS
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DR003 Stainless‑Steel Concealed Door Coordinator For Double‑Leaf Door Assemblies
DR003 frame‑recessed concealed double‑leaf door coordinator manufactured by WINGTEC. Built from SUS201 / SUS304 stainless‑steel, profile dimension 40×15mm, supplied in multiple factory‑cut length options: 800mm(32"), 1060mm(42"), 1320mm(52"), 1520mm(60"), 1800mm(72"). This fully‑hidden overhead door sequencer installs recessed within door header cutout, invisible after installation and can be painted to match surrounding frame finish. Precision internal cam‑roller mechanical assembly delivers silent sequential‑closing function to guarantee inactive leaf closes ahead of active leaf and prevents latch mis‑engagement. Compliant with BS‑EN, CE, UL, ANSI, BHMA, ISO and SGS standards. Works cooperatively with overhead hydraulic door closers, fits wooden, metal, steel and fire‑rated interior‑exterior double‑leaf door‑sets. Preferred for high‑end boutique hotels, premium retail spaces, luxury residential and modern institutional building projects. Full set of concealed‑installation mounting fasteners included. Monthly production capacity reaches 150,000 units for B2B wholesale premium‑aesthetic architectural hardware tender projects.
Product Specification
Technical Parameter
| Specification | Parameter |
|---|---|
| Product Type | Stainless‑Steel Concealed Recessed‑Frame Mechanical Double‑Leaf Door Coordinator / Door Sequencer |
| Operation | Cam‑roller pure‑mechanical silent sequential closing control, header‑recessed concealed mounting, zero external‑visible hardware after fit‑out, no external power required, controls closing sequence for paired double‑leaf door assemblies |
| Material | Optional Stainless‑Steel Grade 201 / 304, wear‑resistant cam‑roller wheel, self‑lubricated internal mechanical parts, full concealed‑mount fixing‑fastener kit |
| Core Functions | Invisible frame‑recessed installation, enforces correct double‑door closing sequence, eliminates latch‑jamming risk, anti‑corrosion stainless‑steel build, silent low‑maintenance operation, compatible with overhead door‑closer hardware |
| Application | Wooden / Metal / Steel / Fire‑Rated Interior‑Exterior Double‑Leaf Door Assemblies, Boutique‑Hotel‑Premium‑Retail‑Luxury‑Residence‑Modern Institutional Building Hardware Projects |
| Production Capacity | 150,000 Units / Month |
| MOQ | 500 PCS |
| Sample Time | 5‑7 Working Days |
| Lead Time | 30‑35 Days |
| Packing | 1 Set / White Box, Standard Export Carton |
Application Scenarios
High‑End Commercial & Luxury Building Double‑Leaf Door Installations
DR003 concealed door coordinator is purpose‑built for aesthetic‑critical high‑end projects including boutique hotel lobbies, premium retail flagship stores and luxury residential double‑leaf door assemblies. Recessed header‑mount design conceals the entire sequencer mechanism inside door frame cut‑out; hardware can be site‑painted to blend perfectly with surrounding trim. Precision cam‑roller mechanism guarantees inactive door leaf closes before active leaf to avoid latch mis‑closure when paired with overhead fire‑rated door closers. BS‑EN / CE / UL / ANSI / BHMA / ISO / SGS multi‑standard compliance meets global premium architectural tender specification requirements.
Multi‑Material Double‑Door New‑Build & Retrofit Renovation
Selectable SUS201 / SUS304 stainless‑steel delivers anti‑rust performance for interior‑exterior usage. Self‑lubricated cam‑roller internals ensure quiet long‑term operation under frequent high‑traffic cycles. Multiple pre‑fabricated length selections match varied double‑door opening widths. Suited for wooden, metal, steel and fire‑rated double‑leaf doors in new‑construction; also applicable for renovation projects where visible surface‑mount hardware conflicts with interior design vision. Concealed installation fastener kit is provided for header‑cutout professional fitting.
Premium Architectural Hardware Tender Specification Projects
Requires pre‑cut header recess for concealed installation. Multiple surface‑finish options available for project‑specific aesthetic matching. Datasheet, installation drawings, cut‑out dimension guides and multi‑standard compliance documents can be supplied for bidding documentation. Custom length, stainless‑steel grade and custom surface finishing can be arranged for large‑volume B2B project orders.
Product Characteristics
Premium stainless‑steel construction (SUS201 / SUS304 optional), profile dimension 40×15mm, multiple pre‑cut length choices for different double‑door opening widths
Fully‑hidden header‑recessed concealed mounting design; entire mechanism disappears inside door‑frame cut‑out; unit surface can be painted on‑site to match surrounding trim aesthetics
Precision cam‑roller pure‑mechanical sequencing principle; no wiring or external power needed; silent operation; enforces proper closing sequence preventing latch mis‑alignment for paired double‑leaf door‑sets
Self‑lubricated internal mechanical assembly for low‑maintenance heavy‑cycle service life; complete concealed‑mount fixing‑fastener kit included for professional on‑site installation
Multi‑standard certification: BS‑EN, CE, UL, ANSI, BHMA, ISO & SGS verified; works cooperatively with standard overhead hydraulic door‑closer systems, fits wooden, metal, steel and fire‑rated interior‑exterior double‑leaf doors
Wide range of surface‑finish selections for premium architectural matching; monthly capacity 150,000 units for B2B wholesale luxury‑commercial institutional bulk tender orders
Warranty & Customization
Standard quality warranty covering manufacturing defects of stainless‑steel profile housing, cam‑roller wheel and internal mechanical sequencing components.
Bulk wholesale supply for high‑end architectural construction and aesthetic‑driven double‑door hardware tender projects; custom length, stainless‑steel grade and custom surface‑finish options available upon large‑volume request.
Product datasheet, header‑cut‑out dimension drawing, step‑by‑step concealed‑installation instructions and multi‑standard compliance documents available for tender‑submission project‑documentation.
Frequently Asked Questions
What is DR003 concealed door coordinator used for?
DR003 is a header‑recessed invisible mechanical double‑leaf door sequencer. It is installed hidden within door‑frame cut‑out for high‑aesthetic‑requirement double‑door projects. It ensures the inactive leaf closes before active leaf, preventing latch jamming, widely applied for boutique hotels, premium retail stores and luxury residential paired double‑leaf door assemblies. It must work together with overhead hydraulic door closers.
What length options are available for DR003?
Standard pre‑cut lengths: 800mm(32"), 1060mm(42"), 1320mm(52"), 1520mm(60"), 1800mm(72"). Custom cutting length is acceptable for bulk project orders. Please select length matching actual double‑door opening width.
Does DR003 require external power supply? Any special installation requirement?
DR003 adopts pure cam‑roller mechanical structure without any power‑supply requirement. Special door‑header recess cut‑out machining is mandatory before installation; please refer to official dimension drawing for cut‑out size. Professional hardware installer is recommended.
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